In Ramadan, Muslims eat once before dawn and then they fast all day until sunset. After sunset they can break their fast with whatever they want but it is recommended to break fasting with dates and water. Then, Muslims can eat whatever they want as long as it is not haram (not allowed).
Refer to the related question below for more information.
During fasting in Ramadan, Muslims are not allowed to eat, drink, smoke, or practice sex in the daytime from Dawn to sunset. They are allowed beyond this period to eat, drink, smoke, and practice sex.
Muslims, like all other people, eat in order to live.
because of their religion
Muslims, like all other people, eat in order to live.
they don't eat from sunrise to sunset and eat at night
Well they don't need to but all Muslims during Ramadan break their fast together, of course excluding time differences but Maghrib for each country is the same.
During Ramadan, those Muslims who are supposed to fast (mature), will not eat or drink from sunrise until sunset. If it is not Ramadan, Muslims are not obligated to fast, but it can be Sunnah (visit http://en.wikipedia.org/wiki/Sunnah for more information on Sunnah).
Muslims only fast while the sun is up during the month of Ramadan. All other times they can eat, drink, etc.
Ramadan is not a religion, it is a month within the Islamic calendar.
Fasting is a tradion among Muslims in the month of Ramadan.
In Islam during the holy month of Ramadan, Muslims fast during the day, but eat at night.
From sunrise to sunset during the month of Ramadan, Muslims do not eat or drink.